Sound field type
Free field type
Sensitivity (@ 250 Hz ± 2 dB)
4mV/Pa
Sensitivity (@ 250 Hz ± 2 dB)
- 48±3 dB re 1 V/Pa
Frequency response (±2 dB)
4Hz~90kHz 
Polarization voltage
200V
Typical capacitance
7 pF (250 Hz)
Upper limit of dynamic range (re. 20 uPa)
≥165dB(distortion < 3%)
Lower limit of dynamic range (re. 20 uPa)
≤30dB(A)
Range of operating temperature
-30℃~120℃
Temperature coefficient (-10 ℃ to 50 °C)
0.01dB/℃
Static pressure coefficient
-0.01dB/kPa
Relative humidity range (without condensation)
0~90%RH
Relative humidity coefficient
<0.1dB(0 - 90% RH without condensation)
Pressure equalization method
Average side pressure
IEC 61094-4 Designation
WS3F
Height (without protective grid)
10.5mm
Diameter (including protective grid)
7mm
Height (without protective grid)
9mm
Diameter (without protective grid)
6.35mm
Preamplifier with thread
5.7mm-60UNS